The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/iio/temperature/max31856.txt

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    1 Maxim MAX31856 thermocouple support
    2 
    3 https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf
    4 
    5 Optional property:
    6         - thermocouple-type: Type of thermocouple (THERMOCOUPLE_TYPE_K if
    7                 omitted). Supported types are B, E, J, K, N, R, S, T.
    8 
    9 Required properties:
   10         - compatible: must be "maxim,max31856"
   11         - reg: SPI chip select number for the device
   12         - spi-max-frequency: As per datasheet max. supported freq is 5000000
   13         - spi-cpha: must be defined for max31856 to enable SPI mode 1
   14 
   15         Refer to spi/spi-bus.txt for generic SPI slave bindings.
   16 
   17  Example:
   18         temp-sensor@0 {
   19                 compatible = "maxim,max31856";
   20                 reg = <0>;
   21                 spi-max-frequency = <5000000>;
   22                 spi-cpha;
   23                 thermocouple-type = <THERMOCOUPLE_TYPE_K>;
   24         };

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